I have had nothing but problems with bf2. I have had exactly the same as you twice now but what I found was that if you go to the controls setup everything is blank, that is why your mouse is not working. The last time it happened I hit the restore default button and everything came back. However when I played it yesterday (and it is about the third time it has happened) I have found that a lot of the security features in windows and norton had been corrupted or removed and all my system restore points had been deleted, So I had to format my hard drive and re-install windows.